This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

can't send emails. NO ONE has been able to help AT ALL. CAN YOU?

  • 4 replies
  • 1 has this problem
  • 5 views
  • Paskiausią atsakymą parašė sfhowes

more options

This is the message I get. "An error occurred while sending mail. The mail server responded: From address must match authentication [R0107004]. Please verify that your email address is correct in your account settings and try again." I rally need help with this. No One has come close.

This is the message I get. "An error occurred while sending mail. The mail server responded: From address must match authentication [R0107004]. Please verify that your email address is correct in your account settings and try again." I rally need help with this. No One has come close.

All Replies (4)

more options

My guess, on about Zero information, is you are one of those sending mail from say Me@Mydomain.com using your I.S.P. who does not operate Mydomain.com.

Please add the troubleshooting information to your post To find the Troubleshooting information:

  • Open Help (or click on three-line-icon and select Help)
  • Choose Troubleshooting Information
  • Use the button Copy to clipboard to select all. Do not check box "Include account names"!
  • Paste this in your post.
more options

Application Basics

   Name: Thunderbird
   Version: 45.6.0
   User Agent: Mozilla/5.0 (Windows NT 6.0; rv:45.0) Gecko/20100101 Thunderbird/45.6.0
   Profile Folder: Show Folder
             (Local drive)
   Application Build ID: 20161222195647
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
 Mail and News Accounts
   account1:
     INCOMING: account1, , (none) Local Folders, plain, passwordCleartext
   account2:
     INCOMING: account2, , (pop3) pop-server.tampabay.rr.com:110, plain, passwordCleartext
     OUTGOING: , smtp.tampabay.rr.com:587, plain, passwordCleartext, true
   account3:
     INCOMING: account3, , (pop3) pop-server.tampabay.rr.com:110, plain, passwordCleartext
     OUTGOING: , smtp.tampabay.rr.com:587, plain, passwordCleartext, true
   account6:
     INCOMING: account6, , (pop3) pop-server.tampabay.rr.com:110, plain, passwordCleartext
     OUTGOING: , smtp-server.tampabay.rr.com:25, plain, none, true
more options

I think your mail provider has changed the servers you need to connect to. At least that was what was the case with the last person using old location based road runner server names.

The current server settings are given here https://www.timewarnercable.com/en/support/faqs/faqs-internet/e-mailacco/incoming-outgoing-server-addresses.html


so right click your account on the folder pane, select settings and make the changes you need to in Server Settings and also in outgoing servers (smtp)

more options

Change the Connection security on the outgoing server to STARTTLS, port 587, normal password, full email address as User name.